Lightning flashed and thunder rolled at Coors Field on Tuesday night, but it was Carlos Gonzalez's two-run homer in the sixth inning that shocked the visiting Yankees and their Rocky Mountain faithful.

The Rockies' left fielder worked a 3-2 count off Yankees starter Hiroki Kuroda before ripping a 90 mph fastball into the bullpen beyond right field to give the Rockies a 2-0 victory before a paid crowd of 41,595. New York fans shouted "Let's go Yankees!" a few times, but they were drowned out by boos and chants from Rockies fans.

"Absolutely it's special to hit a homer in a game like this, especially after the way Jorge pitched," Gonzalez said. "We didn't want to waste it. The whole night it was a pitching battle, but all we needed was one hit, that's it."

Jorge, is starter lefty Jorge De La Rosa. He and relievers Matt Belisle, Rex Brothers and Rafael Betancourt held the Yankees to four hits. It was Colorado's first shutout of the season and the Rockies' 33rd combined shutout at Coors Field. Betancourt notched his ninth save in nine tries.

"It is big, especially with how I pitched my last time out," De La Rosa said of Tuesday's outing, which followed his erratic start on April 30 against the Los Angeles Dodgers when he gave up six runs in four innings. "It's huge for my confidence."

De La Rosa improved to 3-0 against the Yankees and hasn't allowed an earned run to them over the last 17 innings.

Kuroda, who entered the game with a 4-2 record and a 2.25 ERA, pitched seven innings, allowing seven hits. CarGo's homer marked just the second time in seven starts Kuroda had given up a run after the second inning.

Gonzalez, a first-time all-star last season, is on another tear. He extended his hitting streak to seven games, during which he's hit .429 with three homers, three doubles and six RBIs. He's raised his average to .322. He extended his interleague hitting streak to 15 games and has hit .394 with six homers, four doubles and 12 RBIs during the streak.

CarGo's seventh homer, the 20th by a Rockies outfielder this season, made a winner out of De La Rosa, who rebounded from his painful start in Los Angeles to pitch six scoreless innings of three-hit ball. Mixing his fastball with befuddling off-speed stuff, De La Rosa got the Yankees to hit into 11 groundball outs.

"The fact that it was a shutout made this a good win. To see Jorge give up what three hits?" manager Walt Weiss said. "That was big-time performance. If we get good starting pitching like we did, for the most part, we are going to win games."

De La Rosa said he thought he was tipping off his pitches against the Dodgers, but Weiss said the lefty didn't make big changes.

"I don't think I saw any major adjustments," Weiss said. "His off-speed stuff was good and his changeup was very effective. He did a great job for us."